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Held for Sale and Discontinued Operations - Net Change Cash From Discontinued Operations (Details) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017
Net Cash Provided by (Used in) Discontinued Operations [Abstract] |  |
Cash balances at beginning of period | $ 97.1 | $ 80.2
Cash balances at end of period | 112.2 | 48.6
Net income tax payment to national governments | 0.5 | 0.0
Discontinued Operations |  |
Net Cash Provided by (Used in) Discontinued Operations [Abstract] |  |
Net cash (used for) provided from operations - discontinued operations | 0.0 | 157.0
Net cash provided from investing activities - discontinued operations | 0.0 | 3.0
Net cash used for financing activities - discontinued operations | 0.0 | (61.9)
Net change in cash during the period | 0.0 | 98.1
Cash balances at beginning of period | 0.0 | 70.5
Cash balances at end of period | 0.0 | 71.3
Interest paid | 0.0 | 0.0
Net income tax payment to national governments | 0.0 | 0.0
Discontinued Operations, Held-for-sale |  |
Net Cash Provided by (Used in) Discontinued Operations [Abstract] |  |
Cash balances at beginning of period | 0.0 | 70.5
Cash balances at end of period | 0.0 | 0.0
Disposal Group, Held-for-sale, Not Discontinued Operations |  |
Net Cash Provided by (Used in) Discontinued Operations [Abstract] |  |
Net change in cash held for sale, excluding discontinued operations | 0.0 | (0.9)
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations |  |
Net Cash Provided by (Used in) Discontinued Operations [Abstract] |  |
Cash sold as part of sale of consolidated subsidiaries | $ 0.0 | $ 167.7

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3044-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Reduction in cash due to no longer including the former subsidiary's cash in the consolidated entity's cash. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow (outflow) of financing activities of discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585 + Details
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- Definition Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760 + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 + Details
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